Confidence intervals for proportions

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Let's assume the municipality would take a sample of #23# to check for types of green roofs and also the distribution of the roofs over the different city districts. Simulate this situation by taking a simple random sample of size #23# from D, use seed #19# by running the command set.seed(19) before taking the sample.

Estimate the fraction of green roofs that are of the type 'Solar-sedumdak' and calculate the #50\%# confidence interval around this estimate. Round your answers to three decimal points.

Fraction of green roofs of type Solar-sedumdak =

Lower bound #50\%# confidence interval =

Upper bound #50\%# confidence interval =

6. Parameter Estimation and Confidence Intervals: Practical 6

Confidence intervals for proportions